fnc_roots: Fine-Root distribution

In rhabel/modLWFB90: R-package for applying LWF-Brook90 directly from FVA-BW servers

Fine-Root distribution

Description

This function adds fine roots to the soil dataframes.

Usage

fnc_roots(
  df,
  rootsmethod = "betamodel",
  humus_roots = T,
  rel_hum_val = 0.5,
  ...
)

Arguments

df	a data frame containing soil properties including MvG-alpha (column alpha), MvG-npar (column npar), theta_s (column ths), theta_r (column thr), and organic carbon in pct (column oc.pct.
rootsmethod	name of the method for fine roots. Possible options are hartmann,betamodel, table, constant, and linear. Default is betamodel.
humus_roots	roots in humuslayer as fraction of roots in highest mineral soil layer. Default is 0.5
...	additional input arguments that are passed on to make_rootden, see make_rootden.

Value

Returns the same data frame, but adds a rootden-column that is recognised by LWFBrook90R.

References

Hartmann, P., Buberl, H., Puhlmann, H., Schäffer, J., Trefz-Malcher, G., Zirlewagen, D., von Wilpert, K. (2016): Waldböden Südwestdeutschlands - Ergebnisse der Bodenzustandserhebungen im Wald von 1989 – 1992 und 2006 – 2008. Verlag Kessel, Remagen-Oberwinter, 328 S

rhabel/modLWFB90 documentation built on Nov. 21, 2024, 3:28 a.m.